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RANGER AIR 260MPX
®
PROBLEMS
(SYMPTOMS)
Engine will not go to low idle
Engine does not go to full power when
using auxiliary power.
Emulsification of oil in compressor
system:
• Compressor oil is milky white in
color
• Compressor oil is broken down
and lacks lubricity
• Compressor oil may develop solid
chunks or clumps
No air pressure
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your
Lincoln Authorized Service Facility for technical troubleshooting assistance before you proceed.
WWW.LINCOLNELECTRIC.COM/LOCATOR
POSSIBLE
1. Idler switch is in the RUN position.
2. Break in lead 239.
3. Faulty pc board.
1. The auxiliary power load is less than 100 Watts.
Set the OFF/AUTO/RUN/START switch to RUN.
2. Disconnect / turn off auxiliary power loads
before starting the engine.
AIR COMPRESSOR
Clutch
Relay
Air Cooler
Relay
Sump
Pressure
Sensor
Outlet
Pressure
Sensor
1. Operating the compressor system for short
periods of time:
• Short cycling prevents the temperature of
the oil from attaining a high enough
temperature capable of vaporizing the
moisture droplets.
• Total minimum system moisture purge
run time of approximately 20 minutes is
recommended.
2. Not allowing compressor to warm up to 180º F
operating temperature:
• This can keep the oil temperature from
getting hot enough to vaporize the
moisture droplets, preventing the
moisture from being able to escape the
system. Additionally, there is no path for
the moisture to escape the system.
3. The air filter is saturated with water:
• This forces moisture to be ingested by the
compressor.
4. Operating in humid conditions amplifies all of
the above.
1. Belt not tensioned properly
2. Air filter clogged
CAUSE
T
Tank
Drain
Hose
E-3
TROUBLESHOOTING
RECOMMENDED
COURSE OF ACTION
If all recommended possible areas of
misadjustment have been checked and
the problem persists, Contact your local
Lincoln Authorized Field Service Facility.
Overpressure
Valve
If all recommended possible areas of
misadjustment have been checked and
the problem persists, Contact your local
Lincoln Authorized Field Service Facility.
1.
See section XX for proper belt
tension procedure
2.
Verify the air filter is clean
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